Hill's Prescription Diet j/d Joint Care Chicken Flavor Dry Dog Food offers clinical nutrition proven to help improve your dog’s ability to run, walk and jump in as little as 21 days. It’s made in the USA with global ingredients you can trust, and was developed by Hill’s nutritionists and veterinarians. This food is also formulated to promote a urinary environment that reduces the risk of developing struvite and calcium oxalate crystals. Please consult your veterinarian for further information on how Prescription Diet foods can help your dog continue to enjoy a happy and active life.